78899821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{149}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 111484800

約数和(自身を除く): 32584979

約数列:

[1, 7, 11, 13, 23, 77, 91, 143, 149, 161, 253, 299, 529, 1001, 1043, 1639, 1771, 1937, 2093, 3289, 3427, 3703, 5819, 6877, 11473, 13559, 21307, 23023, 23989, 37697, 40733, 44551, 48139, 75647, 78821, 149149, 263879, 311857, 490061, 529529, 551747, 867031, 1024673, 3430427, 6069217, 7172711, 11271403, 78899821]

約数ペア:

[(1, 78899821), (7, 11271403), (11, 7172711), (13, 6069217), (23, 3430427), (77, 1024673), (91, 867031), (143, 551747), (149, 529529), (161, 490061), (253, 311857), (299, 263879), (529, 149149), (1001, 78821), (1043, 75647), (1639, 48139), (1771, 44551), (1937, 40733), (2093, 37697), (3289, 23989), (3427, 23023), (3703, 21307), (5819, 13559), (6877, 11473)]